I like and use Resharper because it is cheaper than CodeRush and I don't have to remember as many key commands most things are done with an alt + enter. It also works well with Unit Testing and for more yummy goodness with testing download JP's templates for Resharper.
livetemplates.xml (14.74 KB)
Disclaimer The opinions expressed herein are my own personal opinions and do not represent my employer's view in any way.